OKMULGEE, Okla. (AP) — The Oklahoma Bureau of Narcotics says 18 people were arrested in eastern Oklahoma and one in Texas as part of a 10-month investigation into the distribution of methamphetamine.

OBN spokesman Mark Woodward says agents began serving the warrants about 6 a.m. Thursday in the Okmulgee and Henryetta areas and one arrest was made in Dallas. Woodward says two other people are still being sought.

Woodward says the arrests are part of an investigation that included seven other arrests in Oklahoma in November.

He says the District 25 Drug Task Force and the Okmulgee and Henryetta police departments assisted in Wednesday's efforts.